Learjet 55
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The Learjet 55 "Longhorn" is an American business jet manufactured by Learjet.
Development and design
The Learjet 50 series was first announced at the 1977 Paris Air Show with larger cabins than existing Learjets.[1] The series was to have three variants, the Learjet 54, 55 and 56 but only the Learjet 55 was built.[1] The Learjet 55 was a low-wing cantilever monoplane with NASA-developed winglets. The aircraft has a T-tail and is powered by two Garrett TFE731 turbofans mounted each side of the rear fuselage.[1] It has a retractable tricycle landing gear and an enclosed cabin for up to ten passengers and a cockpit for the two crew.[1] Construction of the Learjet 55 began in April 1978 after extensive testing and work on the wing design which came, initially, from the Learjet 25. The Learjet 55 first flew on 19 April 1979. The first production aircraft were produced starting 18 March 1981. In total, 147 Learjet 55 aircraft were delivered.
Variants
- Learjet 54
- Proposed 11-seat variant; not built.[2]
- Learjet 55
- Production variant; 126 built.[2]
- Learjet 55B
- 1986 - Improved version with a glass cockpit, improved take-off performance and increased range, 8 built.[2]
- Learjet 55C
- 1987 - New rear underfuselage design, with Delta Fins to improve lateral Dutch roll stability, and reduce takeoff and landing speeds.
- Learjet 55C/ER
- Extended-range version of the Learjet 55C.
- Learjet 55C/LR
- Long-range version of the Learjet 55C, fitted with an extra tank, carrying an extra 259 lb (117 kg) of fuel in the tail cone.
- Learjet 56
- Proposed eight-seat version, not built.[2]
- VU-55
- Brazilian Air Force designation for a VIP transport variant of the Learjet 55.[3]
Operators
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Accidents and incidents
- On 31 January 2025, Jet Rescue, a Mexican-registered Learjet 55 operating as a air ambulance by a Miami/Mexico based Jet Rescue Air Ambulance with six people on board crashed near Roosevelt Mall in Philadelphia, at the intersection of Bustleton and Cottman Avenues, 40 seconds after takeoff from the Northeast Philadelphia Airport at 6:06 p.m. EST. The pediatric patient and her mother were en route to Tijuana International Airport in Mexico via Springfield-Branson National Airport, northwest of Springfield in Greene County, Missouri, after a medical procedure in Philadelphia Shriners Hospital.[5] All 6 occupants onboard the aircraft and 2 people on the ground were killed in the crash.
Specifications
Data from Illustrated Encyclopedia of Aircraft[1]
General characteristics
- Crew: 2
- Capacity: 10Template:Aircraft specs/lengthTemplate:Aircraft specs/lengthTemplate:Aircraft specs/lengthTemplate:Aircraft specs/lengthTemplate:Aircraft specs/lengthTemplate:Aircraft specs/lengthTemplate:Aircraft specs/lengthTemplate:Aircraft specs/lengthTemplate:Aircraft specs/lengthTemplate:Aircraft specs/convertTemplate:Aircraft specs/convertTemplate:Aircraft specs/convertTemplate:Aircraft specs/convertTemplate:Aircraft specs/convertTemplate:Aircraft specs/convertTemplate:Aircraft specs/convertTemplate:Aircraft specs/engTemplate:Aircraft specs/engTemplate:Aircraft specs/engTemplate:Aircraft specs/lengthTemplate:Aircraft specs/convertTemplate:Aircraft specs/length
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References
Notes
- ^ a b c d e Orbis 1985, p. 1935
- ^ a b c d Simpson 1991, pp. 187-188
- ^ Page Module:Citation/CS1/styles.css has no content."Brazilian Military Aircraft Designations". designation-systems.net. Retrieved 2025-03-17.
- ^ Page Module:Citation/CS1/styles.css has no content."SAP Group - Aircrafts [sic]". Archived from the original on 2014-10-22. Retrieved 2014-09-29.
- ^ Page Module:Citation/CS1/styles.css has no content.Deliso, Meredith. "Small plane crashes near Roosevelt Mall in Philadelphia in fiery explosion". ABC News. Retrieved 2025-02-01.
Bibliography
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- Page Module:Citation/CS1/styles.css has no content.The Illustrated Encyclopedia of Aircraft (Part Work 1982–1985). Orbis Publishing.
- Page Module:Citation/CS1/styles.css has no content.Simpson, R.W. (1991). Airlife's General Aviation. England: Airlife Publishing. ISBN 1-85310-194-X.
External links
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